5G base stations, field monitoring stations, mines and medical machine rooms are phasing out lead-acid batteries and adopting LFP storage as standby power. Base stations in remote mountains and islands face unstable grid supply, while LFP batteries guarantee all-day operation of signal equipment. In flammable and explosive mining environments, LFP batteries avoid thermal runaway with remarkable safety. Operating rooms and emergency medical devices rely on uninterrupted power, and LFP storage can sustain emergency power for hours. Lightweight LFP batteries have a 10-year lifespan, cutting labor costs of replacement and maintenance, suitable for long-term unattended operation in harsh wild environments.